[swingdoc]

Destined to fail. What is the benefit of this compared to standard book(s)?

Smaller/lighter/easier to transport?

Yes and no. Certainly no when compared to a single book. Yes when compared to 400 books, but who needs to (or does) transport 400 books? Outside of very select populations (travelling abroad for months at a time) this seems a rather weak improvement.

Easier to read than standard bokos?

No. Approx the same ease of reading.

I just don't see any great improvement over standard books here. Digital music was obviously a huge improvement. Increased ease of use (wrt mixing and matching songs from various artists), increased portability for EVERYONE, not just a rather small sub-population. iPods are smaller and lighter than any CD player, not even mentioning the vastly higher number of songs which can be stored. An enormous market for digital music existed well before iTunes. Pirated music drove the expansion of this technology. Pirated books simply aren't the same force.